Well here goes some apples and oranges.
I tow a 10K fifth wheel with a Ford 6.2 with a 4.30 diffy.
This winter will be my third winter out with the ole ford.
maybe I am over the hill but just don't get it when folks start talking about running 5000 R's on grades. If someone plants his foot on the firewall, sure they will rev that high and they will get to the top of the grade a smidge sooner than me.
The only long grade i do is heading north toward Ashville when i hit the Saluda grade. It is 6% going up and a long pull. I see no reason to get the r's above 4K. I top that one running 45 mph and 4000 rpm and do not remember what gear.
If you don't get all wrapped arond the axle about racing up long grades or living in fear that a rattler will blow by you, you will be fine and pleased with the new horse.
